package com.zhangxiaofanfan.hotcode.third;


import java.util.ArrayList;
import java.util.List;

/**
 * TODO
 *
 * @author zhangxiaofanfan
 * @date 2024-06-26 20:33:33
 */
public class HotCode057 {
    public static void main(String[] args) {
        HotCode057 hotCode057 = new HotCode057();
        System.out.println(hotCode057.letterCombinations("23"));

    }

    private final char[][] keys = new char[][] {
            {'a', 'b', 'c'},
            {'d', 'e', 'f'},
            {'g', 'h', 'i'},
            {'j', 'k', 'l'},
            {'m', 'n', 'o'},
            {'p', 'q', 'r', 's'},
            {'t', 'u', 'v'},
            {'w', 'x', 'y', 'z'},
    };

    public List<String> letterCombinations(String digits) {
        return null;
    }
}
